Why Millennials Are Obsessed With The Dad Hat Trend By Notable Life By Notable LifeView Author|February 16, 2017|Life,View Life Shop,View Shop TrendingView Trending Millennials are super into hats right now. Chance The Rapper is literally never NOT wearing a hat, baseball caps have been dubbed "the new mom jeans" by Refinery29 and Who What Wear blessed baseball hats with a new title, "the... View this article.